Slump (?), n. [Cf. D. slomp a mass, heap, Dan. slump a quantity, and E. slump, v.t.] The gross amount; the mass; the lump. [Scot.]

Slump, v. t. [Cf. Lump; also Sw. slumpa to bargain for the lump.] To lump; to throw into a mess.

These different groups . . . are exclusively slumped together under that sense.

Slump, v. i. [imp. & p. p. Slumped (?); p. pr. & vb. n. Slumping.] [Scot. slump a dull noise produced by something falling into a hole, a marsh, a swamp.] To fall or sink suddenly through or in, when walking on a surface, as on thawing snow or ice, partly frozen ground, a bog, etc., not strong enough to bear the person.

The latter walk on a bottomless quag, into which unawares they may slump.

Slump, n. 1. A boggy place. [Prov. Eng. & Scot.]

2. The noise made by anything falling into a hole, or into a soft, miry place. [Scot.]

Slump, v. i. 1. To slide or slip on a declivity, so that the motion is perceptible; -- said of masses of earth or rock.

2. To undergo a slump, or sudden decline or falling off; as, the stock slumped ten points. [Colloq.]

Slump, n. A falling or declining, esp. suddenly and markedly; a falling off; as, a slump in trade, in prices, etc. [Colloq.]

Slump (?), n. [Cf. D. slomp a mass, heap, Dan. slump a quantity, and E. slump, v.t.] The gross amount; the mass; the lump. [Scot.]

Slump, v. t. [Cf. Lump; also Sw. slumpa to bargain for the lump.] To lump; to throw into a mess.

These different groups . . . are exclusively slumped together under that sense.

Slump, v. i. [imp. & p. p. Slumped (?); p. pr. & vb. n. Slumping.] [Scot. slump a dull noise produced by something falling into a hole, a marsh, a swamp.] To fall or sink suddenly through or in, when walking on a surface, as on thawing snow or ice, partly frozen ground, a bog, etc., not strong enough to bear the person.

The latter walk on a bottomless quag, into which unawares they may slump.

Slump, n. 1. A boggy place. [Prov. Eng. & Scot.]

2. The noise made by anything falling into a hole, or into a soft, miry place. [Scot.]

Slump, v. i. 1. To slide or slip on a declivity, so that the motion is perceptible; -- said of masses of earth or rock.

2. To undergo a slump, or sudden decline or falling off; as, the stock slumped ten points. [Colloq.]

Slump, n. A falling or declining, esp. suddenly and markedly; a falling off; as, a slump in trade, in prices, etc. [Colloq.]

• to collapse heavily or helplessly
  
• to slouch or droop
  
• to decline or fall off in activity or performance
  
• a heavy or helpless collapse
  
• a slouching or drooping posture
  
• a period of poor activity or performance, especially an extended period